The airline's new Perth lounge has a cafe, self-service buffet and drinks station, and business, lounge and quiet areas.

Catering for more than 110 passengers, the 441sqm lounge is on level two of the airport terminal and has windows overlooking an internal atrium.

It's available from 2.5 hours before departure for passengers travelling in Air New Zealand's business class as well as Elite, Gold and Elite Partner members of the airline's Airports loyalty program and members of its Koru program.

The new opening is part of Air New Zealand's four-year, $100 million lounge redevelopment program and follows the opening of new lounges in Auckland, Sydney, Brisbane, Melbourne, Wellington, Queenstown and other airports.

"We are committed to improving the customer experience and continue to invest heavily in the Australian market," said Air New Zealand general manager of customer experience Anita Hawthorne.

"This includes the operation of the Boeing 787-9 Dreamliner on many routes and promoting services through our 'Better Way to Fly' campaign starring Dave the Goose which encourages Australians to travel to North and South America on Air New Zealand."